diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index e3550c6..4cb8d2e 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -2,7 +2,7 @@ name: Nix
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
   workflow_dispatch:
   schedule:
diff --git a/ci-manifests.sh b/ci-manifests.sh
index 852f838..4794539 100755
--- a/ci-manifests.sh
+++ b/ci-manifests.sh
@@ -25,8 +25,8 @@ banner() {
 
 cd "$(dirname "$0")"
 
-if [[ $(git rev-parse --abbrev-ref HEAD) != master ]]; then
-  banner "Skipping push on non-master branch"
+if [[ $(git rev-parse --abbrev-ref HEAD) != main ]]; then
+  banner "Skipping push on non-main branch"
   exit
 fi
 
diff --git a/ci.sh b/ci.sh
index d93bbef..6c52101 100755
--- a/ci.sh
+++ b/ci.sh
@@ -33,8 +33,8 @@ nix-build \
   --option sandbox true \
   --argstr system "$system_name"
 
-if [[ $(git rev-parse --abbrev-ref HEAD) != master ]]; then
-  banner "Skipping push on non-master branch"
+if [[ $(git rev-parse --abbrev-ref HEAD) != main ]]; then
+  banner "Skipping push on non-main branch"
   exit
 fi
 
diff --git a/images/devcontainer/default.nix b/images/devcontainer/default.nix
index c3127a0..bf60d14 100644
--- a/images/devcontainer/default.nix
+++ b/images/devcontainer/default.nix
@@ -130,7 +130,7 @@ let
       ];
       Labels = {
         # https://github.com/microscaling/microscaling/blob/55a2d7b91ce7513e07f8b1fd91bbed8df59aed5a/Dockerfile#L22-L33
-        "org.label-schema.vcs-ref" = "master";
+        "org.label-schema.vcs-ref" = "main";
         "org.label-schema.vcs-url" = "https://github.com/nix-community/docker-nixpkgs";
       };
     };
diff --git a/lib/buildCLIImage.nix b/lib/buildCLIImage.nix
index 454e43d..ba44ed7 100644
--- a/lib/buildCLIImage.nix
+++ b/lib/buildCLIImage.nix
@@ -28,7 +28,7 @@ let
       ];
       Labels = {
         # https://github.com/microscaling/microscaling/blob/55a2d7b91ce7513e07f8b1fd91bbed8df59aed5a/Dockerfile#L22-L33
-        "org.label-schema.vcs-ref" = "master";
+        "org.label-schema.vcs-ref" = "main";
         "org.label-schema.vcs-url" = "https://github.com/nix-community/docker-nixpkgs";
       };
     };